[Bug 77785] (radeonsi) Some lighting issues in games, textures goes black

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun May 18 23:09:02 PDT 2014


--- Comment #19 from Michel Dänzer <michel at daenzer.net> ---
(In reply to comment #14)
> It is XRGB, MESA_FORMAT_B8G8R8X8_UNORM but need to checked it out in real
> situations... a think intel disable support for this "memory saver" format
> in screen, but radeon in classic and gallium leave it enabled :).

MESA_FORMAT_B8G8R8X8_UNORM has nothing to do with memory saving (it's the same
as MESA_FORMAT_B8G8R8A8_UNORM as far as memory layout is concerned), it just
means that the contents of the 'alpha' channel in memory are ignored.

> Does that format need to be supported anymore?

Yes. We need to find out where and how this format ends up being used
incorrectly. Note that this might be in Wine / in the apps themselves.

Anyway, your comments #17 and #18 mean that the PTTM/ATH and AirStrike3D issues
are probably not one and the same bug and need to be tracked separately. The
AirStrike3D and SuperTuxKart issues might be related, but it's better to assume
they're separate as well for now, to avoid cluttering up a single report with
unrelated issues.

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